来自董玲的问题
1/21/33/22/927/4()()找规律
1/21/33/22/927/4()()找规律
1回答
2020-09-23 20:00
1/21/33/22/927/4()()找规律
1/21/33/22/927/4()()找规律
1/2,1/3,3/2,2/9,((3/2)÷(2/9)=27/4),((2/9)÷(27/4)=8/243)